Press for powder metallurgy

Details Press for powder metallurgy Press for powder metallurgy

1981-06-11

1983-04-12

Lowe, James B.

Plastic article or earthenware shaping or treating: apparatus

Means for molding powdered metal

425415, 425416, 425444, B30B 1102

Patent

active

043796842

ABSTRACT:
Press for powder metallurgy and method of simultaneous compression of powder in a die disclosed which includes descent speed differentially control apparatuses for simultaneous compression powder in the die from both the upper and lower direction by an upper punch and a lower punch. The descent speed of an upper ram is transferred to the upper punch at that speed, and the speed is changed to lower speed through the control device than the upper punch speed and the controlled lower speed is transferred to a die holder which is simultaneously descended with the controlled lower speed together with the high speed upper punch.

REFERENCES:
patent: 1648721 (1927-11-01), Claus
patent: 2562876 (1951-08-01), Baeza
patent: 2570989 (1951-10-01), Sielig
patent: 2883703 (1959-04-01), Frank
patent: 2888715 (1959-06-01), Frank
patent: 2932063 (1960-04-01), Belden et al.
patent: 3098261 (1963-07-01), Littley et al.
patent: 3200465 (1965-08-01), Lossman
patent: 3559243 (1971-02-01), Hermet
patent: 3758245 (1973-09-01), Hermet
patent: 3802818 (1974-04-01), Watanabe et al.
patent: 3868201 (1975-02-01), Jacobson et al.
patent: 3890413 (1975-06-01), Peterson
"Powder Metallurgy Technics Course No. 4", Metal Powder Forming, New Japan Printing Inc., Tokyo, Aug. 64.

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